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Diffstat (limited to 'arch/arm/mach-davinci/serial.c')
-rw-r--r--arch/arm/mach-davinci/serial.c54
1 files changed, 20 insertions, 34 deletions
diff --git a/arch/arm/mach-davinci/serial.c b/arch/arm/mach-davinci/serial.c
index f2625814c3c9..5e93a734c858 100644
--- a/arch/arm/mach-davinci/serial.c
+++ b/arch/arm/mach-davinci/serial.c
@@ -70,49 +70,36 @@ static void __init davinci_serial_reset(struct plat_serial8250_port *p)
UART_DM646X_SCR_TX_WATERMARK);
}
-/* Enable UART clock and obtain its rate */
-int __init davinci_serial_setup_clk(unsigned instance, unsigned int *rate)
+int __init davinci_serial_init(struct platform_device *serial_dev)
{
- char name[16];
+ int i, ret = 0;
+ struct device *dev;
+ struct plat_serial8250_port *p;
struct clk *clk;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
-
- sprintf(name, "uart%d", instance);
- clk = clk_get(dev, name);
- if (IS_ERR(clk)) {
- pr_err("%s:%d: failed to get UART%d clock\n",
- __func__, __LINE__, instance);
- return PTR_ERR(clk);
- }
-
- clk_prepare_enable(clk);
-
- if (rate)
- *rate = clk_get_rate(clk);
-
- return 0;
-}
-
-int __init davinci_serial_init(struct davinci_uart_config *info)
-{
- int i, ret;
- struct davinci_soc_info *soc_info = &davinci_soc_info;
- struct device *dev = &soc_info->serial_dev->dev;
- struct plat_serial8250_port *p = dev->platform_data;
/*
* Make sure the serial ports are muxed on at this point.
* You have to mux them off in device drivers later on if not needed.
*/
- for (i = 0; p->flags; i++, p++) {
- if (!(info->enabled_uarts & (1 << i)))
- continue;
+ for (i = 0; serial_dev[i].dev.platform_data != NULL; i++) {
+ dev = &serial_dev[i].dev;
+ p = dev->platform_data;
- ret = davinci_serial_setup_clk(i, &p->uartclk);
+ ret = platform_device_register(&serial_dev[i]);
if (ret)
continue;
+ clk = clk_get(dev, NULL);
+ if (IS_ERR(clk)) {
+ pr_err("%s:%d: failed to get UART%d clock\n",
+ __func__, __LINE__, i);
+ continue;
+ }
+
+ clk_prepare_enable(clk);
+
+ p->uartclk = clk_get_rate(clk);
+
if (!p->membase && p->mapbase) {
p->membase = ioremap(p->mapbase, SZ_4K);
@@ -125,6 +112,5 @@ int __init davinci_serial_init(struct davinci_uart_config *info)
if (p->membase && p->type != PORT_AR7)
davinci_serial_reset(p);
}
-
- return platform_device_register(soc_info->serial_dev);
+ return ret;
}